| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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| 07/17/2002 | CN1358676A Bow shape penetrating flow type separator and bow shape penetrating flow type film biological reactor |
| 07/17/2002 | CN1358675A Split type film biological reactor and water treatment method |
| 07/17/2002 | CN1358674A Integral type film biological reactor |
| 07/17/2002 | CN1358561A Diaphragm separator |
| 07/17/2002 | CN1087715C Anaerobic removal of sulphur compounds from waste water |
| 07/16/2002 | US6420594 Release agents |
| 07/16/2002 | US6420165 Degrading sludge with microorganisms ATCC 55926 OR 202050 |
| 07/16/2002 | US6419834 Treatment of acidic water containing dissolved ferrous cations |
| 07/11/2002 | WO2002053505A1 Device and method for of water purification |
| 07/11/2002 | WO2002042226A8 Aerobic polishing system for wastewater |
| 07/11/2002 | US20020090697 Composition for use in bioremediation |
| 07/11/2002 | US20020089073 Ceramic layer overlying a silicon substrate; isotropic etching step |
| 07/11/2002 | DE10050979A1 Water aerator for bubble formation in a vessel, includes a support tube containing longitudinal, radial, and internal ridges |
| 07/10/2002 | EP1221429A1 Prefabricated biological purification system |
| 07/10/2002 | EP1220963A1 Method for minimising the new water use in the water circulation system of a treatment plant |
| 07/10/2002 | EP1220819A1 Apparatus for treating fluids |
| 07/10/2002 | CN2499397Y Life waste water treating device |
| 07/10/2002 | CN2499396Y Free flowing suspension filler |
| 07/10/2002 | CN2499395Y Film method treating device for hair beauty and comestic waste water |
| 07/10/2002 | CN2499394Y Waste water treatment device by fibre active carbon biological method |
| 07/10/2002 | CN2499393Y Micro ecological inverse flow film COD purifier |
| 07/10/2002 | CN1357514A Method for making organic fertilizer by utilizing housefly larva to ecologically treat pig dung |
| 07/09/2002 | US6416994 Methanation activity measuring instrument |
| 07/09/2002 | US6416993 Method for treating a waste stream using photosynthetic microorganisms |
| 07/09/2002 | US6416667 To enhance the operation of new or existing septic tanks or aerobic treatment units to prohibit discharge of partially treated waste or other organic solids; connecting settling basin, filtration and flow equalization unit in pipe section |
| 07/09/2002 | US6416652 Method for measuring ammonia in biochemical processes |
| 07/09/2002 | CA2082391C Modular clarifier with integral flocculator |
| 07/04/2002 | WO2002051756A2 Method and conditioning agent for treating waste water and air pollutants |
| 07/04/2002 | WO2002044094A8 Process for enhancing the efficiency of wastewaster purification and decreasing the demand of reagent |
| 07/04/2002 | WO2002032815A3 Treatment of sludge from wastewater treatment facilities |
| 07/04/2002 | US20020084219 Method and apparatus for neutralizing alkaline wastewater without using mineral acids |
| 07/04/2002 | DE10149447A1 Composition for waste water treatment comprises a polymer flocculant or precipitant and a macrobiotic mixed culture |
| 07/03/2002 | EP1219570A1 A method and a device for the purification of waste water |
| 07/03/2002 | EP1219362A1 Apparatus for treating garbage |
| 07/03/2002 | EP1217886A1 Waste-water purification in cattle-breeding systems |
| 07/03/2002 | CN2498152Y Device at water supply outlet for purification |
| 07/03/2002 | CN2498151Y Contact oxidizing filter for quality of purified water at watersupply outlet |
| 07/03/2002 | CN2498150Y Dynamic packing biologic membrane reactor |
| 07/03/2002 | CN1356964A Biological treating appts. for tannery waste water and for reduction of its sludge |
| 07/03/2002 | CN1356271A Process and apparatus for treating waste water |
| 07/03/2002 | CN1087006C Method for treaitng organic waste-water and excretions |
| 07/02/2002 | US6413427 Nitrogen reduction wastewater treatment system |
| 07/02/2002 | US6413426 Algal and nutrient control system and method for a body of water |
| 07/02/2002 | US6413418 Improves efficiency and efficacy of waste water treatment by providing economical way to oxygenate waste water at early stage in treatment process and reduce odor caused by anaerobic reactions of sulfur |
| 07/02/2002 | US6413417 Coagulation and settling or membrane separation of silicon waste water; using alkaline silicon sludge to neutralize fluorine waste water; no stirring or aeration required; recycling unused chemicals; semiconductors |
| 07/02/2002 | US6412121 Thermo-evaporation type toilet system |
| 07/02/2002 | CA2126156C Biological treatment of wastewater and facilities for its application |
| 06/27/2002 | WO2002049971A1 Microbiological composition |
| 06/27/2002 | WO2002004354A8 Method and device for treating waste water from launderettes |
| 06/27/2002 | US20020083492 Basidiomycete peroxidase gene-transferred plant and a method for decomposing and removing hazardous chemicals using the same |
| 06/27/2002 | US20020079270 Microalgae separator apparatus and method |
| 06/27/2002 | US20020079267 Process for direct filtration of wastewater |
| 06/27/2002 | US20020079266 Pressurizable anaerobic digesters connected in parallel; scaleable, low cost to recover energy, reduce pollution potential, and add value to organic waste such as animal manure |
| 06/27/2002 | DE10062878A1 Verfahren zur biologischen Abwasserreinigung Processes for biological wastewater treatment |
| 06/27/2002 | DE10062871A1 Method for biological purification of waste water from paper recycling, comprising adding aerobic microorganisms and purifying using compressed air and pure oxygen |
| 06/26/2002 | EP1216963A2 Process of olive mill waste water phytodepuration and relative plant |
| 06/26/2002 | EP1216085A1 Phase separator having multiple separation units, upflow reactor apparatus, and methods for phase separation |
| 06/26/2002 | EP1163191B1 Method for conditioning water contaminated with halogenated hydrocarbons |
| 06/26/2002 | EP0784518B1 Microbiological parts washer |
| 06/26/2002 | CN2496860Y Sewage bio-purification equipment |
| 06/26/2002 | CN2496859Y Sewage re-use treatment apparatus by separating bio-reaction of hollow fiber film |
| 06/26/2002 | CN1086741C Biochemical oxidation system and process |
| 06/26/2002 | CN1086663C Off-shore sewage treating and transport apparatus and method thereof |
| 06/25/2002 | US6410305 Treatment of animal waste |
| 06/25/2002 | US6409914 Waste treatment unit |
| 06/20/2002 | WO2002048311A2 System for converting organic waste reservoirs into anaerobic digesters |
| 06/20/2002 | WO2002048069A1 Cement paste containing microbial cells |
| 06/20/2002 | WO2002048055A1 Method and apparatus for biological treatment of effluents |
| 06/20/2002 | WO2002048051A1 Purifying device |
| 06/20/2002 | WO2002030834A3 Method for biological treatment of animal breeding effluent and device therefor |
| 06/20/2002 | WO2002011914A3 Method and device for in-situ groundwater decontamination |
| 06/20/2002 | US20020074287 Method for treating high-concentrated organic wastewater using bio-maker |
| 06/20/2002 | US20020074286 Trickling filter system for biological nutrient removal |
| 06/20/2002 | US20020074285 Treatment unit for treating a fluid and method thereof |
| 06/20/2002 | US20020074019 Parts washing system |
| 06/20/2002 | DE10062812A1 Mikrobiologische Zusammensetzung Microbiological composition |
| 06/20/2002 | DE10061486A1 Wastewater treatment process, saturates sewage in a shaft with oxygen, and supplies it under pressure to pre-sedimentation, bio-purification and final sedimentation |
| 06/20/2002 | DE10060730A1 Verfahren und Vorrichtung zur Behandlung von Flüssigkeiten Method and apparatus for treatment of liquids |
| 06/20/2002 | DE10059897A1 Aerobic bio-purification of organically-loaded waste water, followed by membrane- or ultrafiltration, employs pure oxygen or oxygen-enriched air |
| 06/20/2002 | DE10059642A1 Reinigungsmittel Detergent |
| 06/20/2002 | DE10045787C1 In-situ biodegradation of chlorinated hydrocarbons comprises injecting biomass or culture solution, simultaneously distributing, and carrying out biodegradation while continuously adding nutrient and an air/methane mixture |
| 06/20/2002 | CA2430154A1 Purifying device |
| 06/19/2002 | EP1215177A1 Process for the biological treatment of wastewater |
| 06/19/2002 | EP1214273A1 Microbiological water filter |
| 06/19/2002 | EP1214133A2 System filter for pond water or the like |
| 06/19/2002 | CN2495640Y Compact sewage treatment equipment |
| 06/19/2002 | CN1354786A Method of high-concentration culture of nitrifying bacteria or denitrifying bacteria contained in activated sludge, culture promoter to be used in high-concentration culture method of nitrifying |
| 06/19/2002 | CN1354147A Sewage treatment equipment |
| 06/19/2002 | CN1354146A Ecological cultivation and planting process by uisng industrial organic waste water anaerobic fermentation liquor |
| 06/19/2002 | CN1354145A Aeration method for sewage treatment and its equipment |
| 06/19/2002 | CN1354144A Energy-saving underground embedded urban sewage treatment process |
| 06/19/2002 | CN1354143A Process for removing nitrogen and phosphorus at same time from waste water |
| 06/19/2002 | CN1086366C Treatment of water containing heavy metal ions |
| 06/18/2002 | US6406882 Immobilization on coconut fibers a mixture of bacterial strains with refinery phenol wastes |
| 06/18/2002 | US6406630 Curtain assembly for waste treatment |
| 06/18/2002 | US6406629 Biological process for removing phosphorous involving a membrane filter |
| 06/18/2002 | US6406628 Purification of waste water, mixing, incubation, centrifuging and fermentation |
| 06/18/2002 | US6406627 Method for removing pollutants from water |
| 06/18/2002 | US6406619 Three stage sewage treatment plant |
| 06/18/2002 | US6406005 Diffuser for aerating a fluid |